Residential PV

Slovenia’s cumulative PV capacity additions could grow from 466 MW in 2021 to 724 MW by the end of this year. The residential market will account for almost all new capacity, and demand is expected to grow under a net-metering scheme extension until the end of 2023.

The Tokyo Metropolitan Assembly has approved new provisions to make solar installations mandatory for new homes. The rules apply to homes with total rooftop areas of more than 20 square meters, and to buildings with rooftops smaller than 2,000 square meters.

New life-cycle assessment (LCA) data for PV systems confirms that greenhouse gas emissions from 1 kWh of solar electricity are far lower than emissions from fossil-fuel power plants. The difference has been fairly constant since 2018, but has improved substantially since when IEA PVPS started reporting on this measure in 1996.

PV module prices have finally stabilized and a slight downward trend has even started to set in. Whether this will continue depends mainly on how demand shapes up over the next few months. The softening of prices reflects a gradual build-up of inventories which need to be drawn down again this year, if possible – even if it means slashing prices. But for other PV-system components, the situation is quite different, writes Martin Schachinger of solar wholesaler pvXchange.

South African researchers have developed a new cleaning system for solar panels that uses a color-sensing light-to-frequency converter to detect dirt. It can reportedly remove around 95% of the dust from a PV panel in less than a minute, at a lower cost than other systems.

The UK government has publicly submitted a series of proposals for more efficient residential heating. One of them seeks to introduce requirements for all newly installed gas boilers to be “hydrogen-ready” from 2026.

Meteo for Energy offers meteorological prediction and energy production models for photovoltaic, solar thermal, and wind power generation. The new model applies “deep learning” to images from the Meteosat satellite.

German manufacturer Kopp has developed an easy-to-install, four-module foldable PV array. The system uses n-type TOPCon solar modules with outputs of 430 W and efficiency ratings of 22.02%

While the climate summit held at Sharm El Sheikh last month prompted pledges of raised funding for solar lanterns and single-panel systems, the money allocated to date is woefully short of what has been estimated would be required to provide universal access to electricity this decade. Drew Corbyn of Netherlands-based global off-grid solar body GOGLA, outlines three urgent courses of action to accelerate access to electricity.

The International Energy Agency (IEA) says the world will deploy as much renewable energy in the next five years as it did over the last two decades.